PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/19-22:28:00
G01     319.3          17.5                8.3 +/-    1.27      19.4 +/-    1.27  0.170 / 0.190
G08     256.0          13.5               10.6 +/-    1.70      27.4 +/-    1.70  0.140 / 0.170
G10     79.3           53.0               10.3 +/-    0.49      12.5 +/-    0.49  0.040 / 0.050
G11     302.6          23.6               10.1 +/-    1.89      20.4 +/-    1.89  0.040 / 0.060
G14     294.8          70.6               11.8 +/-    0.82      12.4 +/-    0.82  0.090 / 0.200
G18     304.0          41.5               10.8 +/-    1.14      15.3 +/-    1.14  0.100 / 0.200
G20     104.9          29.4               10.7 +/-    0.70      19.0 +/-    0.70  0.170 / 0.320
G31     176.7          40.9               14.0 +/-    0.91      20.1 +/-    0.91  0.170 / 0.280
G32     7.8            67.6               11.1 +/-    0.68      11.9 +/-    0.68  0.040 / 0.090